28903313011 has 4 divisors (see below), whose sum is σ = 30603507912. Its totient is φ = 27203118112.

The previous prime is 28903312979. The next prime is 28903313017. The reversal of 28903313011 is 11031330982.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 28903313011 - 2⁵ = 28903312979 is a prime.

It is a super-3 number, since 3×28903313011³ (a number of 32 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28903313017) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 850097425 + ... + 850097458.

It is an arithmetic number, because the mean of its divisors is an integer number (7650876978).

Almost surely, 2^28903313011 is an apocalyptic number.

28903313011 is a deficient number, since it is larger than the sum of its proper divisors (1700194901).

28903313011 is a wasteful number, since it uses less digits than its factorization.

28903313011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1700194900.

The product of its (nonzero) digits is 3888, while the sum is 31.

Adding to 28903313011 its reverse (11031330982), we get a palindrome (39934643993).

The spelling of 28903313011 in words is "twenty-eight billion, nine hundred three million, three hundred thirteen thousand, eleven".